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Quantitative Characterization of Surface Plasmon-Enhanced Electromagnetic Fields on Ag Nanostructures by Two-photon Photoemission Electron Microscopy


EMSL Project ID
40065

Abstract

Achieving a precise correlation between the localized optical properties and the local geometry of nanostructures will significantly advance the understanding of the nature and origin of nano-localized optical fields (hot spots), and allow for the design and fabrication of novel electronic and photonic devices. We propose to use two-photon photoemission electron microscopy (2P-PEEM) to investigate the hot spots on Ag nanostructures and their assemblies. 2P-PEEM will allow for quantitative measurement of enhanced electromagnetic (EM) fields associated with the localized surface plasmon resonance (SPR) excitation on specific individual hot spot. Additionally, 2P-PEEM will allow us to quantitatively investigate the local extinction profile, polarization dependence, and ultra-fast excited state dynamics of the hot spots on the nanometer scale.

Project Details

Project type
Large-Scale EMSL Research
Start Date
2010-10-01
End Date
2013-09-30
Status
Closed

Team

Principal Investigator

Wei Wei
Institution
University of Florida

Team Members

Yi-Chung Wang
Institution
University of Florida

Jinyong Wang
Institution
University of Florida

Mark Engelhard
Institution
Environmental Molecular Sciences Laboratory

George Schatz
Institution
Northwestern University

Wayne Hess
Institution
Pacific Northwest National Laboratory

Alan Joly
Institution
Pacific Northwest National Laboratory

Related Publications

Duchene J, W Niu, JM Abendroth, Q Sun, W Zhao, F Huo, and W Wei. 2012. "Halide Anions as Shape-Directing Agents for Obtaining High-Quality Anisotropic Gold Nanostructures." Chemistry of Materials. doi:10.1021/cm3020397
Ooi F, JS DuChene, J Qiu, JO Graham, MH Engelhard, G Cao, Z Gai, and WD Wei. 2015. "A Facile Solvothermal Synthesis of Octahedral Fe3O4 Nanoparticles." Small. doi:10.1002/smll.201401954
Peppernick SJ, AG Joly, KM Beck, WP Hess, J Wang, YC Wang, and W Wei. 2013. "Photoemission Electron Microscopy of a Plasmonic Silver Nanoparticle Trimer." Applied Physics A, Materials Science and Processing 112(1):35-39. doi:10.1007/s00339-012-7316-5
Qiu J, YC Wu, YC Wang, MH Engelhard, L McElwee-White, and W Wei. 2013. "Surface Plasmon Mediated Chemical Solution Deposition of Gold Nanoparticles on a Nanostructured Silver Surface." Journal of the American Chemical Society 135(1):38-41. doi:10.1021/ja309392x